Art of casting metals.



W. D. BU-TZ. ART OF'CASTING META-LS.

APPLICATION FILED OCT. 30. m4.

Pats-*ntefi. Dec. 5,1916.

4 SHEETSSHEET 1.

Fl .2. K. Q2

. jnmfulu Walterflliulz,

W. D. BUTZ. ART OF CASUN G METALS.

APPLICATION FILED 010130, 19I4.

Patented Dec. 5,1916.

4 SHEETS-SHEET 2- fig-4' WaZlErDBuZZ,

"WI 0. BUTZ.

ART OF CASTING METALS.

APPLICATION.H,LED OCT. 30. 1914.

1,207,495. Patented Deb. 5,1916.

v '4 SHEETS-SHEET 3.

v I w I90.

- Walterllfium,

W. D. BUTZ.

ART OF CASTING METALS. APPLICATIOH'FILED OCT. 30, 1914.

4 I: T r H 9 m a W 4 5 Juvcnfo-z v HBHZZ 50 i supported inftl'ie nioldthe desired iiiternal' U I E sm rss PATENT OFFICE.

WALTER D. BUTZ, OF NORBlISTOWN PENNSYLVANIA, ASSIGINOR, BY MESNE ASSIGNMENTS, T PARAMOUNT HOSIERY FORM DRYING 00., OF CHICAGO, ILLINOIS, A COR-PORA'IION 0L ILLINOIS.

-citizen of thel nited States, residing" at. Norristown, in the countyof Montgomery and State of Pennsylvania, have invented certain new anduseful Improvements in the Art of Casting Metals, of which the fol.-.lowing is a specification, reference being had therein to theaccompanying drawing.

This invention relates broadly to the art of casting metals andspecifically to methods of casting drying and shapingforms for hosieryand the like.

One object of the invention is, in a novel and simple manner, to cast(of aluminum or aluminum-alloysespecially) a channeled shaping-form inwhich a heating medium is to he maintained to heat the form from within.

Another of the objects of the invention is to provide a. novel methodof'casting an aluminum structure, whereby the cost of production thereofis relatively small; the casting-operations are simple and convenient;'the..1netal otthe resulting casting is even and firm so that,if thestructure-is subjected to arclatirel'y high pressure, it will notthereby be ruptured or weakened; thecasting will not ordinarily bedistorted from the required shape, nor be cracked while cooling inthemold; and the exterior surface of the structure will besmooth and ofproper configuration.

- lnoth'er object is to-cast netalsar'id v more particularly aluminumalloys -in molds comprisiiig ordinary foundry sand and a destructiblecore suitably supported I with in the mold.

Another object is 'so to cast a mass of aluminum-alloy in a mold(comprising 0rtlinary foundry sand, a suitably supported preformed core,and-n chill) that the casting will be soundthroughout itsentire body andfree frorn fhrws and pocket svdu'e to blowing by the evolution of gasesproduced when hotmeta'l comes into contact with the sand nnd jcorechambe Still'unoth'eiohgect of the invention is to produceaidestructible core of such constructi'o'n and in such form that, whenit is s are produced. and the resulting casting is free fromimperfections.

The invention will now be described more particularly its application toa system ART or cesium; METALS.

Specification of Letters Patent,

in which both half-molds or flasks'contain,

on their sides, countcrpartsof the same. puttern-print; that is'to say,the intuglio .print on one side of the mold-flaskis the counterpartof'that on the other side thereof.

Prior to my invention, it was found difficult and well nighimpracticable to cast a satisfactory metallic hosiery form (having;

a sinooth'exterior surface and an internal conducting channel) which wasfree from flaws and other defects. The difliculty op peared to arisefrom the shrinkage of the metal around the core and also from the factthat one portion of the casting con tained a larger mass of the metalthan other portions thereof. This resulted inblows and, also, in theshifting of the core so that the mass of metal forming the walls of thechannel were too thin to withstand all required pressures.

The problem solved by the present invention is the proper positioningand'support ing of the core within the mold in such manner as'topreclude its movement while the molten metal is forming around the same;and this is accomplished by anchoring the preformed co-repreferably madeof sand-- by means of a series of Chaplets preformed and preferably of!the same character of metal as that'of which the casting itself iscomposed.

Other objects and advantages will in part be obvious from the annexeddrawings.

while other objects and advantages will be brought out in the followingdescription. The invention .resides broadly in the inethod'hereinconteinplzited, as well as in the manner of using 'the components (ofpar- -ticul'ar form and character) employed in as it part of thisdisclosure} it being maniiest that other forms of components, em-

ploying the underlying principles of the in Patented Dec, 5, 1916,

Application filed October 30, 1914. ScrialNo. 869,401.

vention, fall Within the spirit thereof and within theobjectscontemplated thereby .l herein shall aim-to set forth, theprinciples oi the invention. and the principal and advantageous featuresthereof.

in these drawings, Figure 1 is a view in top plan of the lower half-moldor flask with a too-part preformed core shown in place therein; Fig. 2.is a view in vertical horizontal section, on the line 2-2, Fig. 1; Fig..3 is a view in vertical transverse section, on the line ,-)-3, Fig. 2,showing more clearly the n'ianneroi' supporting the core in the mold;Fig. l is a 'l ragincntary view, in plan, of the lower half-mold orflash after the imprint has been made in the sand by the pattern; Fig.is a view in plan of a half-section of the preformed core, the sameappearing as lying in a corehox; Fig. (3 is a, \'le\V in verticaltransverse section of a core-box for prcforming a halfsect-ion of atwo-part core; Figs. 7 and 8 are views in plan and edge elevation,respeetively, of onetype of pattern utilized to form the.intaglio-outline in the sand shown in Fig. 1; Fig. 9 is a view inplan'of a modified form of apreformed, one-part core; Fig. 10 is a viewin vertical transverse section of a core-box in which the onepart core,shown in Fig. U, is formed; Fig. ll'is a similar view of another form ofa one-part core; Fig. 12 is-a view in vertical transverse section,showing a drying and shaping form produced by casting one portionthereof upon another (preformed) portion en'ibedded in the sand of themold; the portion which is cast last being shown in full lines in placeand, also, in dotted lines above the preformed portion; Fig. 13 is a.fragmentary view in plan of the cast portion of the form; Fig. 14: is afragmentary riew in elevation of a modified form of pattern adapted toform in the sand in imprint for receiving the core and a chill; Fig. 15is a view in central section on the line l5-15, Fig. lat; Fig. 16' is afragmentary view in plan, and partly in section, of the lowerlllllf-li10ll or flask, showing the chill and a portion of the preformedsandcore disposed thereon; Fig. 17 is a hugmentary view in centralsection; and Fig. 18 is a view of the completed. casting, the outline ofthe base-portion thereof being shown in dotted lines to the left of theillustrated casting.

It will be understood that, in practising my method of casting hosieryforms, I aim ploy a complement of instrumentalities, preferably of aparticular type, and these will now be described in order that the stepsof the method may be understood.

Mold bow.The reference-character 1 designates the frame of a. lowerhalfmold or flask which, as usual, is provided with a pouring opening 2and with a gas vent 3. Adapt-ed to be superposed upon the frame 1 is theframe 1 of an upper half'niold or flask. As usual, these flasksarepacked yi ith sand 5 and preferably the foundry sand commonly employedin foundry practice.

1"(1.ttern-.-A pattern (5, provided with pendant recess-making lugs 7,is pressed in the sand to form the print 8 (Fig. l). In thisinstance,the print is of a configuration corresponding to a hosierydrying form similar to that illustrated in Patent No. 1,111,966, grantedOctober 27th, 1914:, and aslierein shown in Fig. 18, the some thereinbeing designated by the reference-character 9. This includes abody-portion 10 and a base-portion 11. It is provided with-a; partition12 which forms a channel 13 which extends upward from the base-portion11 to near the end of the toe-portion and then back to the base-portion.This channel is adapted to contain a heat-producing medium, such assteam sup )lied from a suitable source. The recess-ma 'ng lugs 7 on thepattern form three circular recesses 14, spacedmpart and ofpredetermined depth. After these recesses have been formed, in the sandin the lower flask, ch'aplet-receivin; instrumentalities, in the form ofhard sand cup-members 15, are disposed therein so that their uppersurfaces are flush with the imprintedsin-faceof the sand, as shown inFig. 2. The base-portion'lfi of the pattern 6 produces an enlarged space17 in the sand which, in the final casting, forms the base-portion 11..

U/tt lZ.Int0 the lower portion of the space 17 is disposed a chillinstrumentality 18 which, inthis instance, ispreferably a plate of iron;Because of the fact that, in. the space 17 is cast the largest mass ofmetal of the hosiery form, it haslieenfound (issirahle, in practice, toaccelerate the cooling of that mass to correspond approximately to thecooling of: the remaining portion of the casting as formed in theimprinted space 8, and this is accomplished by the chill-plate.

(1'09'e.-To produce the internal channel 13 in the. casting, I havefound it desirable in practice to employ a destructible' core. To thisend, I preform such a core and it is preferably of much thesame outline, in general, as the body-portion-10 of;

the casting 9. In Figs. 5 and 6, lhov'e, by

way of example, disclosed one manner of forming a half-section 19.0f- 11$1150; art core. This includes a core-b0x'20'pt9i'1ded with an elongatedcziyity 21 hating,

shown, a concave bottom, an upstanding,

central slot-producing rib 22, an a plumb, ity of spuced'apart,upstanding posts .orj lugs 23.

As shown in Fig. 6, hard sand 24,."ihixed.

with linseed oil, etc, (as usual in 'priictice) is packed into thecavity with strengthem ingwires 25 embedded therein. Then, a plate 26,provided with ribs. 27 formed'on its lower. surface, ifs-laid; .upon theup r surface of the core-box'20 and thereby 1 brought the molten metalto a. predatormined condition, he pours. The molten mass enters thepouring'opening 2,'traverses the channel 39 and proceeds along thesurfaces of the molding sand and the core until the wall-forming space 8zit-each side'of the core is filled and, also, the partition l2' of thecasting, produced by-the elongated slot 28, which is formed integralwith the casting.

I will now state that the chaplets may be 7 composed of any desiredmaterial; but, in

practice, 1 have found it desirable to make them of. the same metal,whether it be aluminum or aluminun'i alloy, as that of which the castingis to he made. 'lheresult is that the molten metal, as it comes intocontact with the obaplets,-elfects a fusion of these so that they unitewith the poured metal and become an integral part of the casting. As themetal comes into contact with the core. it tends to burn out thebinderif it be, for instance, linseed oil-and produces an evolution ofgases which are conveyed, through the channels 29, into the vent-opening40 and, thence, through the opening 3 to the atmosphere. .Thestrengthening wires :25 will. when the casting has cooled. occupy aposition in the channel 13 so that, when the core disintegrates, thewire can he withdrawn. As the lliISt. 11 of lhe casting includes aconsiderable mass of metal, the chill-plate 18 will tend to efl'cct acooling of the metal, which forms the same, in rather accurate ratio tothe action of the cooling of the body portion of the casting.

As soon as the metal has suliicicnily cooled, the mold may be opened andthe casting removed. The core, being destructibly formed-01? sand, forinstance, and as already explainedit .will be in part, if not entirely,disintegrated by the time that the meta] has cooled. If still intact, itcan then be disintegrated by shaking'ihc casting or han'nuering it. Theends of the portions 323 and El-l of the chaplet 'will extend somewhatbeyond the face of the casting, but can readily be cut off withoutinjury to the casting. Moreover, the portions of metal which form in theveut-opening 40 and in the channel 39 can also be removed before thecasting is polished, which is the finaloperation of finishing it.

I have found it of mlvantage-and especially when the atmosphericconditions are abnormal, to preheat the effective molding surfaces ofthe core and sand. To this end,

I may, for instance, heat the same by igniting gasolene poured upon suchsurfaces while the mold is open and just before the pouring operation.

By the method above described, I have not only been able to secure auniformity of casting as regards absence of blows, etc; but, by means ofthe accurate registering of the chlplete with the cup-members 15 and inI carrying the supporting, thereby, of the core, in a precise spacedrelation to the walls of the space 8, the thickness of the walls of thechanneled casting gives a uniformity which is not only desirable butabsolutely necessary because of the fact that the castings, whenemployed as hosiery drying and shop ing forms, a e subjected to aninternal variable pressure for which provision must be made.

J1 whifz'cate'oas.-In the development of my invention, 1 have devisedvarious modifications of some of the components employed I out myimproved casting method. For instance, as shown in Figs. 9, 10 and 11, 1have revealed two forms of a one-part core and, also, core-boxes in.which those are produced. Referring to Figs. 9 and 10, it will beobserved that a core-box ll is provided with a cavity 42 having verticalwalls and a flat bottom surface and with a central rib 43. Hard sand ispacked into the cavity 42, with strengthening wires ll andi'eilbpi-oduciiig strips 45 and 46 embedded therein. The strips 45extend through the leg portion of the core, while the strips to extendthrough the foot portion thereof. and the two strips at each side meetat the points l7,- Fig. 9. After the sand in the corc'has become fixed,the strips 45 and 46 are carefully withdrawn so as to producevent-openings 48 at each side of the core. The rib all will produce anclongalod slot 'l'i) in the core, and posts (not shown) upstanding fromthe bottom of the cavity 42 and alining with the rib' 43, willIH'IHlIM't chaplct-receiring holes 50 in the core. This is than ha ked,after which chaplets, ot' the kind already described, are positioncd inthe holes 50, whereupon the core is ready to he placed in a mold. Anadvantage of this particnla r form of core is that it enables thecasting of a hosiery form of relatively thin dimensions.

in Fig. 11, a o'uepart core 51 is produced in the core-box 52 having aconcm'ed recess 53 and anupstanding slot-producing rib 54. In thisinstance, the vent openings 55 are produced in a manner similar to thatexplained in connection withthe core illustratod in liigs. 9 and 10. A'surface rounding implement 56 is provided to traverse two surfaces ofthe core-box and form the upper surface of the core. I

Il'i'Flg. 12, a somewhat different type of a primary section 57 is castin an appropriately formed mold (not shown) after'which it is embeddedin .molding sand in a suitable mold and permitted to remain there sothat lhemetal to produce the secondary section 58 can be poured intothe, mold and said section be, thus, formed practically as an integralpart thereof. To facilitate the anchoring of the section 58 to thesection 57 the is produced, the channel 61 may be produced while theprimary section 57 is being cast, and a partition 62 is formed at thesame time and which, when the secondary section unites with the primarysection 57, Will effect a union with said secondary section,

, As shown in Fig. l8"('and in dotted lines to the left-thereof), thebase portion 11 is provided with an elongated groove 63. Usually, thisis produced by milling out the base portion. It is within thecontemplation of xny'invent'ion, however, to form this groove (53 whilethe base portion itself is being cast.

' sand, so that, as'the molten .Which preferably is of metal To thisend, a chill-memben64 is disposed at the base of the core (35 and in thebase-forming space 66 in the molding sand. In this instance, the chillnot only is utilized to produce the groove 63 but its function as achilling instrumentality is also availed of. Moreover, being providedwith integral posts 67, it forms bolt holes 68in the base 11 while thelatter is being cast. The chill member 6% is provided with channels 69which register with the gas channels 70 in the core 65. To provideathenecessary imprint in the molding sand, tor-receive the chill member 6-1,the body portipn 71 of the pattern is provided with a chill portion 7-2and,'by meanso'f the bolts 73, is removably secured to the portion 71 sothat the same chill'portion can. be used on a number of patterns."

Fronr the foregoing, it will be observed that I have devised anew methodof producing'channeled castings, one novel feature thereof residing inthe mounting in a preformed channel-producing' core of a plu rality ofchaple'ts adapted to be positioned in. and accurately register\v'itli'chapletu'eceiving cup-members disposed "in predeterminedspaced-apart relation in the molding mass is jpouredinto the mold,danger of shifting of the core. when the metal comes into contact withthe same is obviated and, moreover, the procurement of castingscharacterized 'by'the desirable feature of uniformity is made possible.Another feature of novelty. is the. ar'rangemerit, in precisecorrespondence, of the cupforming recesses in the molding sand and thechaplet-receiving holes in the core, for convenient and accurateregistration one with the: other. The invention also contemplates-notonly the use 'of .the componentshcrein disclosed but. also theirparticular. form and character, whereby the results ob- 'tained, inpractising my method, are accompiished. 1-, 1

What l-claifi'i is: 1. The method: of; making castings which. consistsinforming in a mass of moldinz material a print of the structure to becast, effecting registering recesses in the material Within the limitsof the print thus formed, disposing in said recesses preformed fusiblechaplet-receiving instrumentalities, pre forminga core of destructiblemateriahdisets of fusible material which'extend through posin therein aseries of spaced apart chapthe core and b'eyonditsexterior surfaces, p0

sitioning the preformed core and its contained chaplets as an, entity insaid instruinentalities and in spaced relation to the-surface of saidmolding material, pouring metal into the space between said core andmolding material and around said chaplets to fuseand amalgamate the samewith the poured metal and thereby anchorsaid chapletsin the metal massthus cast, and disi-ntegratingand removing the core from within thecasting without disturbing the chaplets.

2. The method of making castings which consists in preforming a core andproviding the same with gas channels, forming in a mass of moldingmaterial the outline of the structure to-be cast, recessing saidmaterial at predetermined spaced-apart points, with in the limits of theoutline disposing in said recesses preformed. chaplet-receivingregistering cores, mounted in said. first-named co-rea series ofpreformed chaplets of fusi-f ble material, theends of the chapletsextending beyond the exterior surface of the core,- positioning the coreand its contained chapl'ets as an entity in said ohaplet-receivin coresand spaced from the molding materia pouring metal similar to that of thechaplets 'into the mold and around the chaplets" to fuse the same, and-disintegrating and removing, the core.

3; The method consists in forming in-a mass of molding material a printof the device to be cast, effecting registering recesse in said materialwithinth limits 'of the 1) int thus formed, disposing in blechapletreeeiving, instrumentalities, preforming a core, spaced-apartchaplets of fusible material which extend through the core and beyond.itsexterior surfaces, positioning the preof making castings which saidrecesses preformedinfusi- 7 and disposing therein a series of formedcore and its contained chaplets as an entity in said instrumentalities'and in spaced relation to the surface of said mold-v and removingthecore.-

4. The method of-malring castingsvvhich consists 'in forming in a massofmolding material an 'i-utaglio rij'i tline of the device to be cast,effecting registering recesses-1n said thereby anchor said ohaplets inmaterial, disposing in said recesses preformed Chaplet-receivingcore-instrumentalities, preforming a core, disposmg in the core a seriesof fusible, metallic elniplets so as to extend through and l'ieyrind theexte rior surfaces thereof, positioning thispreformed core and itscontained ehaplets as an entity in said core-instrmnentalities and inspaced relation to the surface of said material, disposing at one end ofsaid core a chill-instrumentality, pouring metal into the space oetweensa-i'd core and molding material and around said ehaplets to fuse thesame and thereby anchor the Chaplets in the metal mass, anddisintegrating and removing the core.

5. The method of making castings which consists in preforming a hardsand-core provided with an elongated slot and with gas channels andrents, forming in a-mass of molding material the outline of the articleto be cast, recessing said material at predetermined spacedsapartpoints, disposing in said recesses preformed ehaplet-receiving andregistering cores, mounting in said hard sand-core a series of preformedchaplets of fusible metal the ends of the chaplets ex tending beyond theexterior surfaces of the core, positioning said sand core and itscontained ehaplets as an entity in' said ehapletreceiving cores andspaced from the molding material, and.ponring metal similar to that ofthe chaplet into the mold and around said chaplets to melt the same.

' i. The method of making castings which consists in forming ahard-sand-core provided with an elongated slot and with gas channel'samdvents, producing in a mass of molding material the outline of thearticle to be cast, recessing said material at predetel-mined pointsdisposing in said recesses preformed ehaplet-receiving and registeringcores mounting in said hard sand-core a series of preformed chaplets offusible metal, the ends of the ehaplets extending beyond the exteriorsurfaces of the core, positioning said sand core and itseont-ainedchaplets as an entity in saidChaplet-receiving cores andspaced from the molding material, pouring metalsimilar to that of theehaplet mto the mold and around said Chaplets to melt the same, anddisintegrating and removing the core.

'7. The method of making castings which consists in forming ahard-sand-core provided with an elongated'sht and with gas channels andvents, n'oducing in a mass of molding material the outline'of thearticle to be cast, recessing said material at" predetel-mined points.disposing in said recesses preformed ehaplot-receiving and registeringcores, mounting in said hard sand-core a, sorieaof preformed ehapiets offusibleinetal. the ends oi the c'haplets' extending beyond the exteriorsurfaces of the core, positioning said sand core and its containedehaplels as an entity in said ehaplet-reoeiving cores and spaced fromthe molding material, disposint, a chill instrumentality at the pointwhere the greatest mass of the metal is t exist. pouring metal similarto that of the chaph-t into the mold and around said rhap lets to meltthe some, and disintegrating and removing the core.

8. The metluidof making aluminum castings-whieh consists in forming ahard-sandcore provided with an elongated slot and withgas channels andrents, producing in a. mass of molding. material the outline of the,article to be cast, reeessing said material at ]n'edetermiued points,disposing in said recesses preformed ehaplet receiving and registering'cores,- mounting in said sandeore a series of preformed, aluminiumchaplets so that they will extend through the core and beyond itsexterior surfaces, positioning the sand core and its contained chapletsas an entity in said chapleta'eeeiring coresand spaced from the moldingmaterial, pouring metal similar to that of the chap lets into the moldand a and said ehaplets to melt the same and isintegrating and removingthe core.

5'). The method of making aluminum eastings which consists in forming ,ahard-sandeore provided with an with gas channels and vents, producing ina mass of molding material the outline of the article to be cast,recessing said material at predetermined points, disposing in saidrecesses preformed ehaplet-receiving and registering cores, inount ingin said sandcore a series'of preformed, aluminium chapletsso that theywill extend through the core andliei rmd its exterior surfaces,positioning the sand-core audits contained chaplets as an entity in'saidchaplet-receiving cores and spared from the molding material,

ell'ecting a warn'iingof the molding mater al, pouring metal s milar tothat=ofthe chaplet into the'mold and around Said-chapletsto melt the sant,v and disintegrating and ren'ioifin'g the core.

10. Themethod of making. aluminum cast ings' whichiconsists in" forminga hard-sand- .9'5 elongated slot and core provided, with an elongatedsloli and with gas channels and'vnts, producing in a mass of moldingmaterial'the outline of the article-to be cast, recessing said materialat ]n'edetermined points, disposing in said 1;e' oesses preformedcliaplet-receiving and reg: isteringrores, monntingin said sand-core aseries of preformed, aluminium chaplets so that they will and beyond itsexterior surfaces, positioning the sand-core an entity in saidehaplet-receivingeoresand spared from the molding material, pouring onthe mo] ding material an inflammable fluid and lighting it to preheatthe same, pouring and its contained Chaplets as extend th-i-ongh thecore f metal similar to that of the chaplet into a" Y 1 L'll1'en1etlio(l of making: castings which consists |n-= forming anlnt-ag'llo outline for print in a mass of molding'materlal, recessoutthe exterior area of the core, pouring" the metal-into said outline andaround said cores-rid into contact with said chaplets, and

I chilling a portion ofthe metal to effect. a

cooling 'thereof'in corresponding ratio to the cooling of the remainderthereof;

12. The method of'making castings which consistsiniorming an intagliooutline or, print in amass of molding material, recessing said mass toreceive chaplet-sustaining instrumentalities, placing fusible chapletsin a preformed fragile coreso that their ends project beyond theexteriorsurfaces thereof, positioningthe core and chaplets, as an en-'.

tity, insaid" instrumentalities and in spaced relation from themoldingmaterial throughout the exterior'area'ofthe core,.pou'r in'g the metalinto-said outline and around said core :and into contact with saidchapletsg;

chilling a portion of the metal to'efiect' a. I

jugs which consists in forming a print in cooling thereof incorresponding ratio to; the cooling of the remainder thereof, and,finally, disintegrating the core.

18. The hereimdescrihed method of casting aluminum articles consistingin preparing a mold including a hard 's and core,

- mounting in the core a series of fusible metal core-supportingchaplets so as to form a part thereof, heating-the core and chapletsjto'prevent sudden chilling of metal flowing around the same, pouring molteni aluminum Into the mold and around the chaplets toeffect fusing thereofand their amalgamation with the molten metal While the latter is formingaround and solidifying about the: core,'and then -disintegrating andremoving the core.

' to. form an outline of the structure to be cast '14. The method ofproducing a metallic casting which consists informing a pattern with aseries of spaced-apart recessprodncing instrumentalities disposing thepattern and ins'trumentalities in molding material.

and simultaneously to recess'the molding mater1al;preformmg adestructlble core with chaplot-recmvmg apertures s accd apart 'tocorrespond-to the spacing 0 said instrumentali ti cs; positioningcore-so pporting chaplcts in I the apertures; insertingchaplet-receivinn' cup-members in ther cesses in the inoldlng material;positioning the core and its contained chaplets as an entity in the moldwith its Chaplets register ing with and supported by the cup-members andspaiced apartffr'om the surface of the the molding-sand, said printincluding aseries of spaced-apart cup-receiving. re-

the poured-nietal and become cesses; positioning in said receses aseries.

of recessed cnp-memhersg forming a dostructihle core with a series ofchaplet receiving apertures spaced apart in p'reeisecorres'pondence tothe recesses in the molding sand and with an elongated partitio chapletsin said apertures; positioningsaic'l core and its contained chaplets, asan entity, in the mold-box with the chaplets in register and spacedapart from the surface of the imprinted molding-sand; and then pouringmetal-in the mold, and into-fusing contact Withsaid'chaplets, around thecore, and into said elongated slot, whereby a partitioned 16. The methodof making metallic castthe molding-sand, said print including -a seriesof spaced-apart cup-recelvmg reforming slot approximately alimng withsaidfapertures; positioning core-si1pporting with and supported by saidcup-members and channeled castin is formed.

cesses; positioning in said recesses a series of recessed cup-members;forming a, de-" structible core with a. series of chapletr"- ceivi-ngapertures spaced apart in precise correspondence to the recesses in themold ing-sa'nd and with an elongated partition formin slot as rox-imatelalinin with.

the imprinted molding-sand; then pouring metal in the mold and intofusing contact with said Chaplets, around. the core, and into saidelongated slot, whereby a partitioned and channeled casting is formed;and,

finally. disintegrating the core.

its contained chaplets, as an entity,

17. The method of making metallic castin as which consists in forming aprint inthe molding-sand.- sa d print including a-series of spaced-apartcup-receiving recesses'lpositioning' in said recesses a series ofrecessed cup-members; forming a destructihle core with a series ofchaplet-receiving apertures spaced apart in precise correspondence tothe recesses in the molding-sand, with an elongated partitiomformingslot up roximately alining with said apertures, an with gas-channelsextending approximately longitudinally of the core and venting at oneend thereof into the atmosphere; positioning coresupporting ehuplcts insaid apertlllcs; positioning said core and its contained chaplets, as'anentity, in the moldbux with the chaplets in register. with and supportedby said cnp-1nembers and spaced apart from the surface of the-imprintedmolding-sa11d; then peuring metal in the mold and into fusing with acidehaplets, around the core, and into said elongated slot, whereb apartitioned and 1b channeled-casting is ormed; and, finally,disintegrating the core. I v In testimony whereof]: my signature inpresence of two.witnessee 1 WALTER D. 'BUTZ \Vitnessps Fm'u'm BnooxsKELLY, Lnoi n JOHNSON.

